Murfreesboro is a city in Pike County, Arkansas, United States. The population was 1,764 at the 2000 census. The city is the county seat of Pike County. Crater of Diamonds State Park is located just to the south. The crater is an eroded lamproite pipe where diamonds were discovered in 1906. 100,000 were found by 1933, and visitors to the park may still take away whatever they can find.
The guard cells surround each stoma in a plant cell. They regulate  the opening and closing of stomata to facilitate gas exchange and  control transpiration in plants.
A second structure important to all plant cells is the central vacuole, which is a large storage compartment in plant cells. Both the cell wall and the central vacuole help plant cells regulate water movement, or osmosis, to keep plant cells strong enough to withstand a few days without water. wilting plant! Notice, however, that even in a hypertonic environment, the cell wall helps maintain the shape of the plant cell. As soon as you started watering the plant regularly, the plants were again in an isotonic, or equal, water environment.